<?php if (!defined('DEDEINC')) exit("Request Error!");
/**
 * 织梦模块类
 *
 * @version        $Id: dedemodule.class.php 1 10:31 2010年7月6日Z tianya $
 * @package        DedeCMS.Libraries
 * @copyright      Copyright (c) 2020, DedeBIZ.COM
 * @license        https://www.dedebiz.com/license
 * @link           https://www.dedebiz.com
 */
require_once(DEDEINC . '/charset.func.php');
require_once(DEDEINC . '/dedeatt.class.php');
require_once(DEDEINC . '/dedehttpdown.class.php');

function base64url_encode($data)
{
    return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
}

function base64url_decode($data)
{
    return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT));
}

class DedeModule
{
    var $modulesPath;
    var $modulesUrl;
    var $modules;
    var $fileListNames;
    var $sysLang;
    var $moduleLang;
    function __construct($modulespath = '', $modulesUrl = '')
    {
        global $cfg_soft_lang;
        $this->sysLang = $this->moduleLang = $cfg_soft_lang;
        $this->fileListNames = array();
        $this->modulesPath = $modulespath;
        $this->modulesUrl = $modulesUrl;
    }
    function DedeModule($modulespath = '')
    {
        $this->__construct($modulespath);
    }

    /**
     *  枚举系统里已经存在的模块(缓存功能实际上只作hash与文件名的解析，在此不特别处理)
     *
     * @access    public
     * @param     string   $moduletype   模块类型
     * @return    string
     */
    function GetModuleList($moduletype = '')
    {
        if (is_array($this->modules)) return $this->modules;

        $dh = dir($this->modulesPath) or die("没找到模块目录：({$this->modulesPath})！");

        $fp = @fopen($this->modulesPath . '/modulescache.php', 'w') or die('读取文件权限出错,目录文件' . $this->modulesPath . '/modulescache.php不可写!');

        fwrite($fp, "<" . "?php\r\n");
        fwrite($fp, "global \$allmodules;\r\n");
        while ($filename = $dh->read()) {
            if (preg_match("/\.xml$/i", $filename)) {
                $minfos = $this->GetModuleInfo(str_replace('.xml', '', $filename));
                if ($minfos==null) {
                    continue;
                }
                if (isset($minfos['moduletype']) && $moduletype != '' && $moduletype != $minfos['moduletype']) {
                    continue;
                }
                if ($minfos['hash'] != '') {
                    $this->modules[$minfos['hash']] = $minfos;
                    fwrite($fp, '$' . "GLOBALS['allmodules']['{$minfos['hash']}']='{$filename}';\r\n");
                }
            }
        }
        fwrite($fp, '?' . '>');
        fclose($fp);
        $dh->Close();
        return $this->modules;
    }

    /**
     *  从远程获取模块信息
     *
     * @access    public
     * @param     string   $moduletype   模块类型
     * @return    string
     */
    function GetModuleUrlList($moduletype = '', $url = '')
    {
        $dh = dir($this->modulesPath) or die("没找到模块目录：({$this->modulesPath})！");
        $fp = @fopen($this->modulesPath . '/modulescache.php', 'w') or die('读取文件权限出错,目录文件' . $this->modulesPath . '/modulescache.php不可写!');
        $cachefile = DEDEDATA . '/module/moduleurllist.txt';
        $remotelist = '';
        if (file_exists($cachefile) && (filemtime($cachefile) + 60 * 30) > time()) {
            // 30分钟本地缓存一次
            $remotelist = file_get_contents($cachefile);
        } else {
            $del = new DedeHttpDown();
            $del->OpenUrl($url);
            $remotelist = $del->GetHtml();
            PutFile($cachefile, $remotelist);
        }
        if (empty($remotelist)) return false;

        $modules = unserialize($remotelist);
        if (empty($moduletype)) {
            return $modules;
        }
        $return = array();
        foreach ($modules as $arrow => $data) {
            if ($data['moduletype'] == $moduletype)
                $return[] =  $data;
        }
        return $return;
    }
    /**
     *  转换编码
     *
     * @access    public
     * @param     string    $str  字符串
     * @return    string
     */
    function AppCode(&$str)
    {
        if ($this->moduleLang == $this->sysLang) {
            return $str;
        } else {
            if ($this->sysLang == 'utf-8') {
                if ($this->moduleLang == 'gbk') return gb2utf8($str);
                if ($this->moduleLang == 'big5') return gb2utf8(big52gb($str));
            } else if ($this->sysLang == 'gbk') {
                if ($this->moduleLang == 'utf-8') return utf82gb($str);
                if ($this->moduleLang == 'big5') return big52gb($str);
            } else if ($this->sysLang == 'big5') {
                if ($this->moduleLang == 'utf-8') return gb2big5(utf82gb($str));
                if ($this->moduleLang == 'gbk') return gb2big5($str);
            } else {
                return $str;
            }
        }
    }

    /**
     *  获得指定hash的模块文件
     *
     * @access    public
     * @param     string  $hash  hash文件
     * @return    string
     */
    function GetHashFile($hash)
    {
        include_once($this->modulesPath . '/modulescache.php');
        if (isset($GLOBALS['allmodules'][$hash])) return $GLOBALS['allmodules'][$hash];
        else return $hash . '.xml';
    }

    /**
     *  获得某模块的基本信息
     *
     * @access    public
     * @param     string   $hash  hash
     * @param     string   $ftype  文件类型
     * @return    string
     */
    function GetModuleInfo($hash, $ftype = 'hash')
    {
        if ($ftype == 'file') $filename = $hash;
        else if (!empty($this->modulesUrl)) {
            $filename = $this->modulesUrl . $hash . '.xml';
        } else $filename = $this->modulesPath . '/' . $this->GetHashFile($hash);
        $start = 0;
        $minfos = array();
        $minfos['name'] = $minfos['info'] = $minfos['time'] = '';
        $minfos['hash'] = $minfos['indexname'] = $minfos['indexurl'] = '';
        $minfos['ismember'] = $minfos['autosetup'] = $minfos['autodel'] = 0;
        //$minfos['filename'] = $filename;
        if (empty($this->modulesUrl)) {
            $minfos['filesize'] = filesize($filename) / 1024;
            $minfos['filesize'] = number_format($minfos['filesize'], 2, '.', '') . ' Kb';
        }
        $fp = fopen($filename, 'r') or die("文件 {$filename} 不存在或不可读!");
        $n = 0;
        while (!feof($fp)) {
            $n++;
            if ($n > 30) break;
            $line = fgets($fp, 1024);
            if ($start == 0) {
                if (preg_match("/<baseinfo/is", $line)) $start = 1;
            } else {
                if (preg_match("/<\/baseinfo/is", $line)) break;
                $line = trim($line);
                list($skey, $svalue) = explode('=', $line);

                $skey = trim($skey);
                $minfos[$skey] = $svalue;
            }
        }
        fclose($fp);

        if (empty($minfos['lang'])) {
            $minfos['lang'] = "utf-8";
        }
        if (isset($minfos['lang'])) $this->moduleLang = trim($minfos['lang']);
        else $this->moduleLang = 'gbk';

        if ($this->sysLang == 'gb2312') $this->sysLang = 'gbk';
        if ($this->moduleLang == 'gb2312') $this->moduleLang = 'gbk';

        if ($this->sysLang != $this->moduleLang) {
            foreach ($minfos as $k => $v) $minfos[$k] = $this->AppCode($v);
        }

        // 验证模块信息
        $pubKey = @base64url_decode($minfos['pubkey']);
        @openssl_public_decrypt(base64url_decode($minfos['info']), $decontent, $pubKey);
        $enInfo = (array)json_decode($decontent);
        if (count($enInfo)==0) {
            return null;
        }
        if ($enInfo['module_name'] != $minfos['name'] || $enInfo['dev_id'] != $minfos['dev_id']) {
            return null;
        }

        return $minfos;
    }

    /**
     *  获得某模块的基本信息
     *
     * @access    public
     * @param     string   $hash  hash
     * @param     string   $ftype  文件类型
     * @return    string
     */
    function GetFileXml($hash, $ftype = 'hash')
    {
        if ($ftype == 'file') $filename = $hash;
        else $filename = $this->modulesPath . '/' . $this->GetHashFile($hash);
        $filexml = '';
        $fp = fopen($filename, 'r') or die("文件 {$filename} 不存在或不可读!");
        $start = 0;
        while (!feof($fp)) {
            $line = fgets($fp, 1024);
            if ($start == 0) {
                if (preg_match("/<modulefiles/is", $line)) {
                    $filexml .= $line;
                    $start = 1;
                }
                continue;
            } else {
                $filexml .= $line;
            }
        }
        fclose($fp);
        return $filexml;
    }

    /**
     *  获得系统文件的内容
     *  指安装、删除、协议文件
     *
     * @access    public
     * @param     string   $hashcode  hash码
     * @param     string   $ntype  文件类型
     * @param     string   $enCode  是否加密
     * @return    string
     */
    function GetSystemFile($hashcode, $ntype, $enCode = TRUE)
    {
        $this->GetModuleInfo($hashcode, $ntype);
        $start = FALSE;
        $filename = $this->modulesPath . '/' . $this->GetHashFile($hashcode);
        $fp = fopen($filename, 'r') or die("文件 {$filename} 不存在或不可读!");
        $okdata = '';
        while (!feof($fp)) {
            $line = fgets($fp, 1024);
            if (!$start) {
                //  2011-6-7 修复模块打包程序中上传安装程序生成为空白文件(by:华强)
                if (preg_match("#<{$ntype}>#i", $line)) $start = TRUE;
            } else {
                if (preg_match("#<\/{$ntype}#i", $line)) break;
                $okdata .= $line;
                unset($line);
            }
        }
        fclose($fp);
        $okdata = trim($okdata);
        if (!empty($okdata) && $enCode) $okdata = base64_decode($okdata);
        $okdata = $this->AppCode($okdata);
        return $okdata;
    }

    /**
     *  把某系统文件转换为文件
     *
     * @access    public
     * @param     string  $hashcode  hash码
     * @param     string   $ntype  文件类型
     * @return    string  返回文件名
     */
    function WriteSystemFile($hashcode, $ntype)
    {
        $filename = $hashcode . "-{$ntype}.php";
        $fname = $this->modulesPath . '/' . $filename;
        $filect = $this->GetSystemFile($hashcode, $ntype);
        $fp = fopen($fname, 'w') or die('生成 {$ntype} 文件失败！');
        fwrite($fp, $filect);
        fclose($fp);
        return $filename;
    }

    /**
     *  删除系统文件
     *
     * @access    public
     * @param     string   $hashcode  hash码
     * @param     string   $ntype  文件类型
     * @return    void
     */
    function DelSystemFile($hashcode, $ntype)
    {
        $filename = $this->modulesPath . '/' . $hashcode . "-{$ntype}.php";
        unlink($filename);
    }

    /**
     *  检查是否已经存在指定的模块
     *
     * @access    public
     * @param     string  $hashcode  hash码
     * @return    bool  如果存在则返回True,否则为False
     */
    function HasModule($hashcode)
    {
        $modulefile = $this->modulesPath . '/' . $this->GetHashFile($hashcode);
        if (file_exists($modulefile) && !is_dir($modulefile)) return TRUE;
        else  return FALSE;
    }

    /**
     *  读取文件，返回编码后的文件内容
     *
     * @access    public
     * @param     string   $filename  文件名
     * @param     string   $isremove  是否删除
     * @return    string
     */
    function GetEncodeFile($filename, $isremove = FALSE)
    {
        $fp = fopen($filename, 'r') or die("文件 {$filename} 不存在或不可读!");
        $str = @fread($fp, filesize($filename));
        fclose($fp);
        if ($isremove) @unlink($filename);
        if (!empty($str)) return base64_encode($str);
        else return '';
    }

    /**
     *  获取模块包里的文件名列表
     *
     * @access    public
     * @param     string   $hashcode  hash码
     * @return    string  返回文件列表
     */
    function GetFileLists($hashcode)
    {
        $dap = new DedeAttParse();
        $filelists = array();
        $modulefile = $this->modulesPath . '/' . $this->GetHashFile($hashcode);
        $fp = fopen($modulefile, 'r') or die("文件 {$modulefile} 不存在或不可读!");
        $i = 0;
        while (!feof($fp)) {
            $line = fgets($fp, 1024);
            if (preg_match("/^[\s]{0,}<file/i", $line)) {
                $i++;
                $line = trim(preg_replace("/[><]/", "", $line));
                $dap->SetSource($line);
                $filelists[$i]['type'] = $dap->CAtt->GetAtt('type');
                $filelists[$i]['name'] = $dap->CAtt->GetAtt('name');
            }
        }
        fclose($fp);
        return $filelists;
    }

    /**
     *  删除已安装模块附带的文件
     *
     * @access    public
     * @param     string   $hashcode   hash码
     * @param     string   $isreplace  是否替换
     * @return    string
     */
    function DeleteFiles($hashcode, $isreplace = 0)
    {
        if ($isreplace == 0) return TRUE;
        else {
            $dap = new DedeAttParse();
            $modulefile = $this->modulesPath . '/' . $this->GetHashFile($hashcode);
            $fp = fopen($modulefile, 'r') or die("文件 {$modulefile} 不存在或不可读!");
            $i = 0;
            $dirs = '';
            while (!feof($fp)) {
                $line = fgets($fp, 1024);
                if (preg_match("/^[\s]{0,}<file/i", $line)) {
                    $i++;
                    $line = trim(preg_replace("/[><]/", "", $line));
                    $dap->SetSource($line);
                    $filetype = $dap->CAtt->GetAtt('type');
                    $filename = $dap->CAtt->GetAtt('name');
                    $filename = str_replace("\\", "/", $filename);
                    if ($filetype == 'dir') {
                        $dirs[] = $filename;
                    } else {
                        @unlink($filename);
                    }
                }
            }
            $okdirs = array();
            if (is_array($dirs)) {
                $st = count($dirs) - 1;
                for ($i = $st; $i >= 0; $i--) {
                    @rmdir($dirs[$i]);
                }
            }
            fclose($fp);
        }
        return TRUE;
    }

    /**
     *  把模块包里的文件写入服务器
     *
     * @access    public
     * @param     string   $hashcode   hash码
     * @param     string   $isreplace   是否替换
     * @return    string
     */
    function WriteFiles($hashcode, $isreplace = 3)
    {
        global $AdminBaseDir;
        $dap = new DedeAttParse();
        $modulefile = $this->modulesPath . '/' . $this->GetHashFile($hashcode);
        $fp = fopen($modulefile, 'r') or die("文件 {$modulefile} 不存在或不可读!");
        $i = 0;
        while (!feof($fp)) {
            $line = fgets($fp, 1024);
            if (preg_match("/^[\s]{0,}<file/i", $line)) {
                $i++;
                $line = trim(preg_replace("/[><]/", "", $line));
                $dap->SetSource($line);
                $filetype = $dap->CAtt->GetAtt('type');
                $filename = $dap->CAtt->GetAtt('name');
                $filename = str_replace("\\", "/", $filename);
                if (!empty($AdminBaseDir)) $filename = $AdminBaseDir . $filename;
                if ($filetype == 'dir') {
                    if (!is_dir($filename)) {
                        @mkdir($filename, $GLOBALS['cfg_dir_purview']);
                    }
                    @chmod($filename, $GLOBALS['cfg_dir_purview']);
                } else {
                    $this->TestDir($filename);
                    if ($isreplace == 0) continue;
                    if ($isreplace == 3) {
                        if (is_file($filename)) {
                            $copyname = @preg_replace("/([^\/]{1,}$)/", "bak-$1", $filename);
                            @copy($filename, $copyname);
                        }
                    }
                    if (!empty($filename)) {
                        $fw = fopen($filename, 'w') or die("写入文件 {$filename} 失败，请检查相关目录的权限！");
                        $ct = '';
                        while (!feof($fp)) {
                            $l = fgets($fp, 1024);
                            if (preg_match("/^[\s]{0,}<\/file/i", trim($l))) {
                                break;
                            }
                            $ct .= $l;
                        }
                        $ct = base64_decode($ct);
                        if ($this->sysLang != $this->moduleLang) {
                            //转换内码
                            if (preg_match('/\.(xml|php|inc|txt|htm|html|shtml|tpl|css)$/', $filename)) {
                                $ct = $this->AppCode($ct);
                            }
                            //转换HTML编码标识
                            if (preg_match('/\.(php|htm|html|shtml|inc|tpl)$/i', $filename)) {
                                if ($this->sysLang == 'big5') $charset = 'charset=big5';
                                else if ($this->sysLang == 'utf-8') $charset = 'charset=gb2312';
                                else  $charset = 'charset=gb2312';
                                $ct = preg_match("/charset=([a-z0-9-]*)/i", $charset, $ct);
                            }
                        }
                        fwrite($fw, $ct);
                        fclose($fw);
                    }
                }
            }
        }
        fclose($fp);
        return TRUE;
    }

    /**
     *  测试某文件的文件夹是否创建
     *
     * @access    public
     * @param     string   $filename  文件名称
     * @return    string
     */
    function TestDir($filename)
    {
        $fs = explode('/', $filename);
        $fn = count($fs) - 1;
        $ndir = '';
        for ($i = 0; $i < $fn; $i++) {
            if ($ndir != '') $ndir = $ndir . '/' . $fs[$i];
            else $ndir = $fs[$i];
            $rs = @is_dir($ndir);
            if (!$rs) {
                @mkdir($ndir, $GLOBALS['cfg_dir_purview']);
                @chmod($ndir, $GLOBALS['cfg_dir_purview']);
            }
        }
        return TRUE;
    }

    /**
     *  获取某个目录或文件的打包数据
     *
     * @access    public
     * @param     string    $basedir   基本目录
     * @param     string    $f
     * @param     string    $fp  文件指针
     * @return    bool
     */
    function MakeEncodeFile($basedir, $f, $fp)
    {
        $this->fileListNames = array();
        $this->MakeEncodeFileRun($basedir, $f, $fp);
        return TRUE;
    }

    /**
     *  测试目标文件
     *
     * @access    public
     * @param     string    $basedir   基本目录
     * @param     string    $f
     * @return    bool
     */
    function MakeEncodeFileTest($basedir, $f)
    {
        $this->fileListNames = array();
        $this->MakeEncodeFileRunTest($basedir, $f);
        return TRUE;
    }

    /**
     *  检测某个目录或文件的打包数据，递归
     *
     * @access    public
     * @param     string    $basedir   基本目录
     * @param     string    $f
     * @return    void
     */
    function MakeEncodeFileRunTest($basedir, $f)
    {
        $filename = $basedir . '/' . $f;
        if (isset($this->fileListNames[$f])) return;
        else if (preg_match("/Thumbs\.db/i", $f)) return;
        else $this->fileListNames[$f] = 1;
        $fileList = '';
        if (!file_exists($filename)) {
            ShowMsg("文件或文件夹: {$filename} 不存在，无法进行编译!", "-1");
            exit();
        }
        if (is_dir($filename)) {
            $dh = dir($filename);
            while ($filename = $dh->read()) {
                if ($filename[0] == '.' || strtolower($filename) == 'cvs') continue;
                $nfilename = $f . '/' . $filename;
                $this->MakeEncodeFileRunTest($basedir, $nfilename);
            }
        }
    }

    /**
     *  获取个目录或文件的打包数据，递归
     *
     * @access    public
     * @param     string    $basedir   基本目录
     * @param     string    $f
     * @param     string    $fp  文件指针
     * @return    string
     */
    function MakeEncodeFileRun($basedir, $f, $fp)
    {
        $filename = $basedir . '/' . $f;
        if (isset($this->fileListNames[$f])) return;
        else if (preg_match("#Thumbs\.db#i", $f)) return;
        else $this->fileListNames[$f] = 1;
        $fileList = '';
        if (is_dir($filename)) {
            $fileList .= "<file type='dir' name='$f'>\r\n";
            $fileList .= "</file>\r\n";
            fwrite($fp, $fileList);
            $dh = dir($filename);
            while ($filename = $dh->read()) {
                if ($filename[0] == '.' || strtolower($filename) == 'cvs') continue;
                $nfilename = $f . '/' . $filename;
                $this->MakeEncodeFileRun($basedir, $nfilename, $fp);
            }
        } else {
            $fileList .= "<file type='file' name='$f'>\r\n";
            $fileList .= $this->GetEncodeFile($filename);
            $fileList .= "\r\n</file>\r\n";
            fwrite($fp, $fileList);
        }
    }

    /**
     *  清理
     *
     * @access    public
     * @return    void
     */
    function Clear()
    {
        unset($this->modules);
        unset($this->fileList);
        unset($this->fileListNames);
    }
}//End Class